Eresma Valley Greenway at Nava Activity · Nava de la Asunción, Tierra de Pinares, Segovia Image of Nava de la Asunción, not of the place itself. The old station of Nava, today restored, is one of the gateways to the greenway that makes use of the abandoned railway route; the Camino de Santiago de Madrid also passes through the municipality. Photo: Tiia Monto (CC BY-SA 3.0) What to see and do in Nava de la Asunción